Tootfinder

It is going to be the end of the human race that we elect leaders whose overriding motive in life is to cause others pain.
That’s what set him apart from most of his electoral opponents in both parties. He doesn’t really have any affirmative ideas for helping anyone (other than his fellow billionaires.) He is entirely focused on punishing those whom he deems enemies.

Trump rants that Washington Commanders should change name back to ‘Redskins’
President Donald Trump apparently isn't done renaming things this year. After rebranding the Gulf of Mexico to the Gulf of America earlier this year, …

Individual-Based Foundation of SIR-Type Epidemic Models: mean-field limit and large time behaviour
Giorgio Martal\`o, Giuseppe Toscani, Mattia Zanella
https://arxiv.org/abs/2507.13947

Individual-Based Foundation of SIR-Type Epidemic Models: mean-field limit and large time behaviour
We introduce a kinetic framework for modeling the time evolution of the statistical distributions of the population densities in the three compartments of susceptible, infectious, and recovered individuals, under epidemic spreading driven by susceptible-infectious interactions. The model is based on a system of Boltzmann-type equations describing binary interactions between susceptible and infectious individuals, supplemented with linear redistribution operators that account for recovery and re…

Worst-case Nonparametric Bounds for the Student T-statistic
David Edelman
https://arxiv.org/abs/2508.13226 https://arxiv.org/pdf/2508.13226

Worst-case Nonparametric Bounds for the Student T-statistic
We address the problem of finding worst-case nonparametric bounds for T-statistic bythe considering the extremal problem of maximising $\mathbb{P}(S(w)\ge t)$ over nonnegative weight vectors $w\in\mathbb{R}^n$ with $\|w\|_2=1$, where $S(w)=\sum_{i=1}^n w_i \varepsilon_i$ and $\varepsilon_i$ are independent Rademacher variables. While classical results of Hoeffding [1] and Chernoff [2] provide sub-Gaussian upper bounds, and optimal-order inequalities were later obtained by the author […

Multiplicity of dead core solutions in indefinite elliptic problems
Vladimir Bobkov, Humberto Ramos Quoirin
https://arxiv.org/abs/2507.14016 https://

Multiplicity of dead core solutions in indefinite elliptic problems
We investigate nonnegative solutions of indefinite elliptic problems which enjoy the dead core phenomenon. Our model is the subhomogeneous problem $$ -Δ_p u = (a^+(x) - μa^-(x))|u|^{q-2}u, \quad u \in W_0^{1,p}(Ω), $$ where $Ω$ is a bounded domain in $\mathbb{R}^N$, $1 0$. Thanks to a dead core formation property, we obtain multiple nonnegative dead core solutions of this problem for $μ$ large enough. This assertion, in combination with a uniqueness feature, yields…

Le trafic est ralenti entre Champ de Mars et Pontoise dans les 2 sens.
Pour plus d'informations sur cette perturbation, consultez le fil X du RER C.
Motif : individus sur les voies en gare de Montigny Beauchamp.
🤖 19/09 15:45

Global well-posedness of the NLS hierarchy with nonzero boundary condition
Xian Liao, Robert Wegner
https://arxiv.org/abs/2508.14572 https://arxiv.org/pdf/…

Global well-posedness of the NLS hierarchy with nonzero boundary condition
We consider the NLS hierarchy with the nonzero boundary condition $q(t, x) \rightarrow q_\pm \in \mathbb{S}^1$ as $x \rightarrow \pm \infty$ and prove that it is global well-posedness for initial data of high regularity. Specifically, we prove well-posedness of the problem for the perturbation $p = q - q_\ast$ from a time-independent front $q_\ast$ connecting $q_-$ to $q_+$. The equations in the NLS hierarchy are defined using a recurrence relation derived from the expansion of the logarithmic …

Le trafic est ralenti entre Paris Austerlitz et Juvisy dans les 2 sens.
Pour plus d'informations sur cette perturbation, consultez le fil X du RER C.
Motif : individus sur les voies dans le secteur de Choisy Le Roi.
🤖 19/07 14:29

Le trafic est ralenti entre Paris Austerlitz et Juvisy dans les 2 sens de circulation.
Pour plus d'informations sur cette perturbation, consultez le fil X du RER C.
Motif : individus sur les voies Š Paris Austerlitz.
🤖 19/07 09:47

Well posedness and propagation of chaos for multi-agent models with strategies and diffusive effects
Alessandro Baldi, Marco Morandotti
https://arxiv.org/abs/2507.14058

Well posedness and propagation of chaos for multi-agent models with strategies and diffusive effects
A multi-agent model for individuals endowed with strategies and subject to diffusive effects is proposed. The microscopic state of each agent is described by a spatial position and a probability measure, interpreted as a mixed strategy, over a compact metric space. The evolution is governed by a non-local interaction mechanism and by stochastic effects acting on the spatial component of the state. The well-posedness of the multi-agent system and that of a certain McKean--Vlasov stochastic diffe…

Le trafic est perturbé entre Paris Austerlitz et Saint-Martin d'Étampes, entre Paris Austerlitz et Pont de Rungis Orly et entre Paris Austerlitz et Dourdan dans les 2 sens.
Pour plus d'informations sur cette perturbation, consultez le fil X du RER C.
Motif : individus sur les voies dans le secteur de Choisy Le Roi (incident terminé)
🤖 19/07 15:21